41 lines
1.5 KiB
Plaintext
41 lines
1.5 KiB
Plaintext
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'use strict';
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var test = require('tape');
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var hasToStringTag = require('has-tostringtag/shams')();
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var inspect = require('../');
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test('Symbol.toStringTag', { skip: !hasToStringTag }, function (t) {
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t.plan(4);
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var obj = { a: 1 };
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t.equal(inspect(obj), '{ a: 1 }', 'object, no Symbol.toStringTag');
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obj[Symbol.toStringTag] = 'foo';
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t.equal(inspect(obj), '{ a: 1, [Symbol(Symbol.toStringTag)]: \'foo\' }', 'object with Symbol.toStringTag');
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t.test('null objects', { skip: 'toString' in { __proto__: null } }, function (st) {
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st.plan(2);
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var dict = { __proto__: null, a: 1 };
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st.equal(inspect(dict), '[Object: null prototype] { a: 1 }', 'null object with Symbol.toStringTag');
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dict[Symbol.toStringTag] = 'Dict';
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st.equal(inspect(dict), '[Dict: null prototype] { a: 1, [Symbol(Symbol.toStringTag)]: \'Dict\' }', 'null object with Symbol.toStringTag');
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});
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t.test('instances', function (st) {
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st.plan(4);
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function C() {
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this.a = 1;
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}
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st.equal(Object.prototype.toString.call(new C()), '[object Object]', 'instance, no toStringTag, Object.prototype.toString');
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st.equal(inspect(new C()), 'C { a: 1 }', 'instance, no toStringTag');
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C.prototype[Symbol.toStringTag] = 'Class!';
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st.equal(Object.prototype.toString.call(new C()), '[object Class!]', 'instance, with toStringTag, Object.prototype.toString');
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st.equal(inspect(new C()), 'C [Class!] { a: 1 }', 'instance, with toStringTag');
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});
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});
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